Ecosystems may pertain-to oceans.Logical formLearned from5 sentences. An (ecosystem approach) may undergo a development.Logical formLearned from5 sentences. A decline can be in (ecosystem function).Logical formLearned from5 sentences. (Ecosystem health) may undergo assessments.Logical formLearned from5 sentences. An area can be an ecosystem.Logical formLearned from5 sentences. A lifeblood may pertain-to an ecosystem.Logical formLearned from5 sentences. Ecosystems can be on the earth.Logical formLearned from5 sentences. Humans may modify ecosystems.Logical formLearned from5 sentences. An ecosystem can be microscopic.Logical formLearned from5 sentences. A (dune ecosystem) can be coastal.Logical formLearned from5 sentences. Indicators may represent a state of (ecosystem components).Logical formLearned from5 sentences. Ecosystems may support fishery.Logical formLearned from5 sentences. Ecosystems may be structured.Logical formLearned from5 sentences. An aquatic ecosystem may be examined.Logical formLearned from5 sentences. Aquatic ecosystems may undergo a degradation.Logical formLearned from5 sentences.